Finding the Fourth Proportional to 2,090.79, 3,136.17 and 629.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.79 : 3,136.17 = 629.89 : x
2. Step 2: Convert to fraction form
   2,090.79/3,136.17 = 629.89/x
3. Step 3: Cross multiply
   2,090.79x = 3,136.17 × 629.89
4. Step 4: Simplify right side
   2,090.79x = 1,975,442.12
5. Step 5: Solve for x
   x = 1,975,442.12/2,090.79
6. Step 6: Final answer
   x = 944.83